Features: -With digital power display, accurate percentage, the power level is clear at a glance. -High temperature resistance 80??, low temperature resistance 50??, suitable for various weather conditions. -With a built-in 5V/1A output, can charge smartphones, PSP, MP3/MP4/MP5, tablets, digital cameras, etc. -It can help you in any case especially for long distance driving, adventure, outdoor, daily, emergency, travel, etc. Specification: Colour: black&red Battery capacity: 30000mAh Input voltage and current: 5V/2A Output voltage and current: 5V/1A, 12-16V Starting current: 200A Peak current: 800A Material:ABS+electronic components .